Machine element or mechanism – Gearing – Interchangeably locked
Reexamination Certificate
2009-06-02
2011-12-13
Wright, Dirk (Department: 3655)
Machine element or mechanism
Gearing
Interchangeably locked
Reexamination Certificate
active
08074529
ABSTRACT:
An arrangement for reducing rattling in a transmission of counter shaft design having first countershafts (3, 4) and a load-equalizing main shaft (7) in which each transmission ratio step comprises a loose wheel (6), arranged on the main shaft (7), and a respective fixed wheel (5) arranged on each of the first and second countershafts (3, 4) which are in active engagement with one another. Activation of the transmission ratios occurs by actuating a shift element (8) such that the respective loose wheel can be connected, in a rotationally fixed manner, to the main shaft (7). In this arrangement the oil pump (13) of the transmission is mounted on the main shaft (7).
REFERENCES:
patent: 7334493 (2008-02-01), Renner
patent: 102 34 579 (2004-02-01), None
patent: 103 34 460 (2005-05-01), None
patent: 10 2004 057 126 (2006-06-01), None
patent: 10 2006 008 207 (2006-09-01), None
patent: 10 2008 000 820 (2008-03-01), None
Davis & Bujold P.L.L.C.
Wright Dirk
ZF Friedrichshafen AG
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